Hydrocarbon-burner.



B. A. THOMAS.

HYDROCARBON BURNER.

APPLIOATION FILED JULY 25, 1913.

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Swine/nto@ B. AIT'HOMAS.

HYDROGARBON BURNER.

APPLICATION FILED JULY 25, 1913.

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"Tl vom s -1 www t. fr T @lille Specification of Letters Patent.

i .v l. *sr-...W m' Patenten n Application le July 25, 1913. Serial No. 78.1.,l95.

To all whom it may concern f Be it known that l, BRADFORD A. THOMAS, a citizen of the .United States, residing at San Francisco, in the county of San Francisco and State lof California, have invented certain new?.T and useful .improvements in Hydrocarbon-Burners, of which'the follow ing is' a speciiication; reference being had therein to the accompanying drawing.'

. This invention relates to ahydro-carbon burner andthe principal object of the invention is to provide a novel arrangement of parts whereby the burner will be caused to operate very efficiently and the starting Of the burner facilitated.

Another object of the invention isto so d construct the burner that a good draft may be provided through the drip pan.

Another object of theinvention is to pro- Vide the drip pan With a plurality of openings above which troughs are placed so that the burner pipe may be supported above the sand in the drip pan directly above fthe draft opening in the pan.

With these and other objects in View, this invention consists of certain novel combina tions, constructions and arrangements of parts as Will be hereinafter fully described and claimed.

This invention is illustratedin the accompanying drawings, wherein:

Figure l is a side elevation of the stove provided With the improved burner. 2 is a view showing the lire box of the stove in vertical section and the burner partially in elevation, and partially in section. Fig. 3 is a section taken along the line S in Fig. 2. Fig. 4L. is a sectionv taken along the line lfl in Fig. 3. Fig. 5 is a sectional View through the nozzle and a portion of its feed pipe. Fig. 6 is a perspective view of the dellector plate. Fig. 7 is a plan view of the drip pan` with the sand removed. Fig. 8 is a perspective view of the supporting trough. y

ln the accompanying drawings the numeral l0 indicates the stove which is provided vvith the fire boi; l1 having the usual grate l2 and openings which are normally closed by the cover plate 13. This stove may be Vused with coal, but it is desired to provide an arrangement whereby oil may be Fig.'

burned in the fire box when. it not desired to use coal as fuel. This inniroved oil burner has, therefore, been provided und will now be'described in detail.

The oil. is stored in a receptacle li harina a pipe l5 leading therefrom and provided with a control valve 16 by means of which the flow of oil through the pipe l5 can be regulated or stopped entirelyD if desired. This pipe l5 is connected with the pipe 17 by means of the elbow 1S and this pine 17 forms what l shall call the oilv main since'the oil is led from this pipe bv means of branch pipes 19 and 2() to the burner pipes. These pipes 19 and Q0 are connected with the main by means of valves 2l and the valves being provided so that tbe ilov.' of oil through the pipes lt) and 2() can be independent-ly regulated or if desired the flow of oil through one of the pipes can be entirely cut oli' without the fion' through the other pipe beingaiectcd. l"tvhen'both of the valves 21 and 22 are open the oil can flow through the two pipes lll and 2Q thus permitting bot-h of the burners to be operated until the lire box Ais well heated. Itis not necessary to burn both of the burners unless food is being cooked over both of the openings in the top of the stove, and therefore one of the valves can be closed, thus shut-ting off 'the supply of oil to the burner.

The burners which are connected with the. pipes 19' and v20 are identical. in construe tion, and, therefore, a description of one of these burners will. be suihcient for both burners. The branch pipe is provided with a coupling 23 communicating with a lead 24 which lead piae communicates with the generating cham. er' 25 by means of the elbows' 26 and 27 which are connected by the nipple 2.8. it should be noted that the elbow 27 is enlarged at its upper end so that the oil in the pipe 214- will be prevented from entering the generating chamber' with too great speed. This prevents the oil from passing throngh the generating chamber too rapidly and thus gives the oil sufficient time to be thoroughly heated and turned into gas before leaving the generating cham ber. It should be noted that the lead. vextends substantially parallel to the generating chamber' 25 and not far from a point'bcneath the generating chamber so thatthe lead will be heated, and thus the oil partially heated before entering the generating chamber. The generating chamber communicates with a tapered elbow 29 which elbow has a tendency to increase the forcel of gas generated in the generating chamber so that the gas will flow rapidly through the pipe 30 and elbow 31 into the burner pipe 32 and out through the nozzle 33. The nozzle 33 is provided with a small outlet opening 34 as shown in Fig. 5, and the heated gas will, therefore, pass through this opening with a great deal of force, thus carrying with it, a reat deal of oil which has not been suiiiciently heated to form gas. This gas and oil will be driven upwardly, as shown in Fig. 2 and will strike a deflector plate 35 mounted on the generating chamber and adjustably held in place by the ring 36. Wheh the gas strikes the delector plate it will be thrown in all directions and the flame will thus spread out and thoroughly heat the generating chamber and lead pipe 24. i

The grate l2 forms a support for a drip pan 37 which pan rests upon the grate as l shown 1n Fig. 2 and is provided with openings 38y and 39 positioned beneath the troughs 40 and 41 which troughs are provided with supporting feet 42 holding them in spaced relation above the openings 38 and 39. These troughs are surrounded by sand or any other suitable substance which will absorb oil and form supports for the burner pipes and nozzles ofthe burners. The trough not only forms a support for the burner pipe, but also provides means for holding the nozzles beneath the deflector plate 35 since the collars 43 of the nozzles 33 rest in the troughs and thus prevent the burner pipes from moving transversely in the fire box.

',l'hc operation 0f this burner is as follows: The valve 1G is opened and the valves 20 and 2l are then opened and left 0n until the oil Ilmvs ont of the nozzles 33 into the trough-v ill and 4l and over into the sand in the drip pan 37. The valves 21 and 22 are then closed and the match is 4then applied to the sand so that the oilin the sand will be ignited. This oil is burned and Will heat the burner until the oil in the pipes 24, 30, and 32 is converted into gas. It will 'also heat the oil unassisted as soon as the oil in the trough is converted into gas. The gas and heated oil will be driven out through the small openings 34 into the nozzles 33 and will strike the deiiector plates 35.

The valves 21 and 22 will then be opened again, thus permitting the oil to feed into 4the load 24 and from this pipe into the gen- ,ni-ating chamber 25. As soon as the lire box is well heatedone of the valves 21 0r 22 65 can be shut ofll and the remaining burner will be suiicient to heat the fire box at the desired temperature. Of course, if it is desired to cook from both the openings in the stove cover the two burners may be left in -operation.

A burner has thus been provided in which theoil is first heated in the lead 24 and then passed into the generating chamber 25 at a reduced speed due to the enlarged elbow 27 after which it is passed into the pipe 30 at an increased speed due to the tapered elbow 29. The gas and heated oil pass through the pipe 30 into the burner pipe 32 and pass out through the nozzle 33 at a greatly increased speed due tothe relative size which the opening 34 bears to the interior of the branch pipes, valves connecting said branchy pipes with said oil main, a drip pan provided With openings in its bottom, troughs positioned in said drip pan and located above the openings in the bottom of the pan, absorbent material in said drip pan surrounding said troughs, lead pipes leading from sald branch pipes, generating chambers connected with said lead pipes and positioned to one side of said lead pipes and in a higher plane than said lead pipes, conductor pipes extending downwardly from said generators, burner pipes connected with said conductor pipes and extending into said troughs, nozzles carried. by said burner pipes and resting in said troughs, said nozzles being provided with collars engaging the sides of said troughs to prevent said burner pipes from moving out of a normal position, and defiector plates carried by said combustion chambers and positioned above the outlets of said nozzles whereby a stream of comv bustible fluid passing from each of said nozzles will strike one defiector plate whereby the llame will heat said generating chamber and will also heat said lead pipe.

2. A burner comprising an oil main, a branch pipe leading from said oil main, a control Valve for said branch pipe, a lead pipe leading from said branch ipe, a generating chamber connected wit -said lead pipe, a burner pipe positioned beneath said generating chamber and connected therewith, a drip pan, a'trough in said drip pan,

a nozzle forv said ,burner pipe ittin Within In testimony whereof hereunto affix my seid trough and engaging the si e walls signature in presence' of two witnesses. thereof to prevent, transverse movement of BRADFORD A. THOMAS. said burner pipe, 'and a defiector carried by Witnesses:

said` generating chamber and positioned Ross MCMAHON,

above the outlet nozzle of said burner pipe. JAMES MASON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents;

Washington, D. C. 

